I am sure that you have heard the saying, "The chain is only as strong as its weakest link." A failure of a link will result in the collapse of the chain. And batteries can be the weakest link in the chain of the cordless power tools for many reasons. Also, they can be the most costly item in the cordless power tool kit. So you need to pay extra attention when buying one. Make sure you are satisfied with its quality.

The Amp Hour rating (also known as "AH") of a battery is the most important measure when choosing a battery for the power tools. This rating tells you how much amperage is available when discharged evenly over a 20 hour period. Other factors to consider when choosing a battery pack include initial cost, capacity, discharge curve, and recharge life.

Li-Ion batteries have one of the best energy/weight ratios, no memory effect, and virtually no self-discharge when not in use. It means that you do not have to worry about its recharge. Lithium ion batteries are said to be the heart of the cordless power tool. They have an exceptional charge performance and a span of 1,500 to 2,000 cycles. Li-Ion batteries are designed to be deeply discharged and recharged repeatedly. They have proven strength, durability, and reserve capacity.

Today, main power tool manufacturers, such as DeWalt, are using lithium ion batteries in their portable power tools.

DeWalt makes some of the best power tool batteries in the world. And if you need a variety of power tools to work off of one battery platform, you can not beat this company. The revolutionary DeWalt lithium ion batteries are proven market leaders.

Today, the market presents four main types of lithium ion batteries from DeWalt – 14.4-volt, 18-volt, 24-volt, and 36-volt. They can be used with different types of cordless power tools such as power drills, reciprocating saws, jig saws, hammer drills, sanders, etc.

The 18v batteries are the most common cordless power tool batteries. They are typically used to power heavy-duty jig saws and other cordless tools used in the construction industry. The 18-volt battery pack can even manage hard drilling and screw-driving work. 18v power tools are leading the way in the use of lithium ion technology. And DeWalt 18v batteries are used across all the 18v portable power tools in their extensive range of power tools.

The DeWalt 18V portable battery system is the largest system of cordless tools running off of one battery platform in the power tool industry. This system is designed for maximum versatility and durability, allowing users to operate over 30 cordless power tools off of one battery platform.

DeWalt uses patented three stage charging process. Cycle after cycle, their 18v baDeWalt 18v Li-Ion Batterytteries deliver consistent power and last longer than the competitors' battery packs.

Every time you drain a battery and recharge it – that is a cycle. With DeWalt lithium ion 18v heavy duty battery pack you can do that over 2,000 times. And off course, any 18v DeWalt cordless power tool will work with any 18v DeWalt battery pack. So whether you are using nickel cadmium or NANO XRP Li-Ion batteries you are good to go.

DeWalt 18v battery is a low profile battery of only 7 x 3.5 x 7 inches. It weighs only 2.6 pounds which is less than the competition (e.g. Makita 18v battery weighs 3 pounds).

DeWalt 18v lithium ion batteries have a strong and durable case. This ensures a minimal chance of reducing of the battery power during vibration.

Their batteries are all about power, long life, and flexibility.